CN102386434A - Cell formation and packaging method - Google Patents
Cell formation and packaging method Download PDFInfo
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- CN102386434A CN102386434A CN2010102705475A CN201010270547A CN102386434A CN 102386434 A CN102386434 A CN 102386434A CN 2010102705475 A CN2010102705475 A CN 2010102705475A CN 201010270547 A CN201010270547 A CN 201010270547A CN 102386434 A CN102386434 A CN 102386434A
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- battery
- plastic
- liquid injection
- formation
- sealing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention relates to the battery manufacture process, in particular to a battery formation and packaging method, which comprises the following steps: first pre-sealing a liquid injection opening of a cell through a plastic piece, then forming, removing the plastic piece, and finally conducting secondary sealing on the liquid injection opening through a metal piece. In the method, plastic beads are adopted to pre-seal a battery and then conducts closing formation. The formation process of the battery is mainly prevented from being affected by moisture in environment in the production process. After formation is finished, plastic beads such as polystyrene (PP)/ polyurethane (PE)/ polyester (PET)/ polystyrene (PS) are melted in hot melting mode, internal gas is extracted out, and then the battery is sealed through steel beads. The method achieves exhaust for the battery and sealing of the battery without effect of environment, thereby ensuring battery performance. Simultaneously, processes in all the steps can be finished mechanically, so that production efficiency is improved, manufacture cost is lowered, processing accuracy is improved, poor consistency caused by manual operation is avoided, and performance of products is well guaranteed.
Description
Technical field
The present invention relates to battery manufacturing process, especially a kind of battery changes into a kind of method of encapsulation.
Background technology
Original chemical synthesis technology is to stick one deck gummed paper at liquid injection hole after the electric core fluid injection, re-uses rubber band and ties up paper handkerchief or overlap specific gum cover and seal liquid injection hole, to guarantee in back operation such as activation, a kind of chemical synthesis technology that moisture is difficult to get into electric core such as to change into.
Original chemical synthesis technology is a kind of comparatively simple encapsulating method, mainly has following shortcoming:
First: the cellophane tape after the fluid injection comes off easily, does not just reach sealing effectiveness after gummed paper comes off, and has a strong impact on electric core performance or electric core and scraps;
Second: the method is by mainly being manual operation, complex procedures, and consistency is relatively poor, and process capability and operative relationship are bigger.This is the mode of a kind of object and object contact seal, has the hidden danger of poor sealing;
The 3rd: the gas that produces in the formation process makes electric in-core voltage rise high, if electric core poor sealing, internal pressure can make electrolyte flow out from liquid injection hole, pollutes electric wicking surface or corrodes formation device.
Summary of the invention
The present invention provides a kind of exhaust that guarantees battery and in the processing method of the condition lower sealing that does not receive environmental impact.
To achieve these goals, the present invention adopts following steps:
1, carries out the liquid injection port of electric core is sealed in advance with working of plastics;
2, change into;
3, remove working of plastics;
4, with metalwork liquid injection port being carried out secondary seals.
In the above-mentioned steps, comprise step between said step 3 and the step 4:
3A, take out electric in-core gas.
Preferably, described liquid injection port is circular poroid, and said working of plastics is that plastic bead, said metalwork are steel ball.
In the above-mentioned steps, said removal plastic bead step is heating fusion plastic bead.
In the above-mentioned steps, said plastic bead adopts like plastic materials such as PP/PE/PET/PS.
Owing to adopted said method, the present invention seals battery with the plastic cement pearl in advance, and remaining silent changes into again, and mainly avoids the formation process of battery to receive the influence of the moisture of environment from production technology; After completion changes into, with the fusing of plastic cement pearls such as PP/PE/PET/PS, extract internal gas again with hot melting mode; With steel ball battery is sealed then; Realize the exhaust of battery and not receiving the condition lower sealing of environmental impact, secure to battery performance, each step all can have machinery to accomplish processing simultaneously; Not only improved the cost that production efficiency has reduced processing procedure; And having improved the precision of processing, the situation that the consistency of having avoided manual operation to cause is relatively poor also has good guarantee to performance of products.
Description of drawings
Fig. 1 is the schematic flow sheet of first embodiment of the invention;
Fig. 2 is the schematic flow sheet of second embodiment of the invention;
Fig. 3 is an embodiment of the invention envelope plastic bead structural representation;
Fig. 4 is an embodiment of the invention plastic bead fusion back structural representation;
Fig. 5 is an embodiment of the invention envelope steel ball structural representation.
The object of the invention, function and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Following examples are circular poroid with the liquid injection port; Said working of plastics is that plastic bead, said metalwork are that steel ball is that example describes concrete steps; When liquid injection port adopts other shapes; The shape of working of plastics and metalwork is provided with by the shape of liquid injection port, is as the criterion can reach good sealing effectiveness.
As shown in Figure 1, first embodiment of invention adopts following steps:
1, seals in advance with plastic bead; As shown in Figure 2, the sealing part on electric core 5 seals with plastic bead 2, and said plastic bead 6 adopts like plastic materials such as PP/PE/PET/PS.
2, change into; This step adopts general chemical synthesizing method to carry out.
3, remove plastic bead 6; Because change into is the first activation of battery; In the primary charging process, being accompanied by inner chemical reaction is to produce gas, and electric core meeting slight expansion is so adopt this moment hot melting mode to remove plastic bead; As shown in Figure 4; After plastic bead 6 was eliminated, electric 5 inside and outside connections of core, electric core 5 inside and outside pressure differentials were eliminated.
4, envelope steel ball.After removing plastic bead 6, the sealing part on the former incoming call core 5 is left room, and seal this room with steel ball this moment, fills up the sealing part on electric core 5.Because the fusing point of plastic cement pearl 6 is lower; Plastics receive environmental factor (like temperature) influence and deliquescing or break easily; After plastic bead destroys, just do not have sealing effectiveness like this, moisture gets into inside battery and chemical material carries out chemical reaction, and battery is directly scrapped; So as shown in Figure 3, when sealing for the second time, adopt steel ball 7 to seal.
When adopting the step of above-mentioned first embodiment; Though the pressure of electric in-core can be eliminated behind the removal plastic bead; But the gas of can residual air and changing into generation on a small quantity is at electric in-core; In order to make the electric core after changing into that good working environment arranged, the second embodiment of the present invention as shown in Figure 2 increases by a step 3A, takes out electric in-core gas on the basis of first embodiment between above-mentioned steps 3 and step 4.
Because when sealing in advance; Plastic bead has carried out good sealing; So when removing plastic bead,, then might cause damage to electric core if by external force; Be heating fusion plastic bead so remove the plastic bead step described in above-mentioned two embodiment, said plastic bead adopts like plastic materials such as PP/PE/PET/PS.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. an electric core changes into method for packing, it is characterized in that, comprises the steps:
1, carries out the liquid injection port of electric core is sealed in advance with working of plastics;
2, change into;
3, remove working of plastics;
4, with metalwork liquid injection port being carried out secondary seals.
2. electric core as claimed in claim 1 changes into method for packing, it is characterized in that: comprise step between said step 3 and the step 4:
3A, take out electric in-core gas.
3. according to claim 1 or claim 2 electric core changes into method for packing, it is characterized in that: described liquid injection port is for circular poroid, and said working of plastics is that plastic bead, said metalwork are steel ball.
4. electric core as claimed in claim 3 changes into method for packing, it is characterized in that: said removal plastic bead step is heating fusion plastic bead.
5. electric core as claimed in claim 4 changes into method for packing, it is characterized in that: said plastic bead adopts like plastic materials such as PP/PE/PET/PS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010270547.5A CN102386434B (en) | 2010-09-01 | 2010-09-01 | A kind of battery core changes into method for packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010270547.5A CN102386434B (en) | 2010-09-01 | 2010-09-01 | A kind of battery core changes into method for packing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386434A true CN102386434A (en) | 2012-03-21 |
| CN102386434B CN102386434B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010270547.5A Expired - Fee Related CN102386434B (en) | 2010-09-01 | 2010-09-01 | A kind of battery core changes into method for packing |
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| CN (1) | CN102386434B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820488A (en) * | 2012-07-25 | 2012-12-12 | 深圳市海太阳实业有限公司 | Formation encapsulation method for lithium ion battery |
| CN103390776A (en) * | 2012-05-08 | 2013-11-13 | 浙江南博电源科技有限公司 | Repairing method for inflated aluminum-case power battery |
| CN116505109A (en) * | 2023-06-08 | 2023-07-28 | 江苏正力新能电池技术有限公司 | Formation method of square battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212037A (en) * | 2006-12-31 | 2008-07-02 | 上海比亚迪有限公司 | Battery electrolyte filling method |
| CN201112470Y (en) * | 2007-07-25 | 2008-09-10 | 比亚迪股份有限公司 | Rubber ring used for lithium ion battery preparation technique |
-
2010
- 2010-09-01 CN CN201010270547.5A patent/CN102386434B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212037A (en) * | 2006-12-31 | 2008-07-02 | 上海比亚迪有限公司 | Battery electrolyte filling method |
| CN201112470Y (en) * | 2007-07-25 | 2008-09-10 | 比亚迪股份有限公司 | Rubber ring used for lithium ion battery preparation technique |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390776A (en) * | 2012-05-08 | 2013-11-13 | 浙江南博电源科技有限公司 | Repairing method for inflated aluminum-case power battery |
| CN103390776B (en) * | 2012-05-08 | 2016-04-20 | 浙江南博电源科技有限公司 | A kind of flatulence aluminum hull electrokinetic cell restorative procedure |
| CN102820488A (en) * | 2012-07-25 | 2012-12-12 | 深圳市海太阳实业有限公司 | Formation encapsulation method for lithium ion battery |
| CN116505109A (en) * | 2023-06-08 | 2023-07-28 | 江苏正力新能电池技术有限公司 | Formation method of square battery |
| CN116505109B (en) * | 2023-06-08 | 2023-08-25 | 江苏正力新能电池技术有限公司 | Formation method of square battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386434B (en) | 2015-11-25 |
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